Hard to say, don't have a bold, but I can say that plazmic 4.7 is still "buggy" and I have heard all kinds of problems with it. You may want to consider also downloading plazmic 4.6 and build the theme with that. I have both personally, and only use 4.7 to build storm themes. use 4.6 to build curve, bold, pearl, etc.
Don't know if that is the answer to why, but it may help. The other thing to consider is to try and reexport it under a different name.
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